For those of you having concerns with the heat of the Vizio, here is the cheapest non-DIY solution I have found. It's a netbook cooling pad for only $4.99 (free shipping for Amazon subscribers or with $25 orders). It's USB powered, and even runs on the USB port on the back of your Co-Star. I've personally got it running off the USB port on the back of my TV.

It's roughly the size of 2 Co-Stars so if you have a Roku or something else small it can occupy the other cooling fan spot.